mirror of
https://github.com/tommytran732/QubesOS-Scripts
synced 2024-11-23 02:01:32 -05:00
54 lines
2.7 KiB
Bash
54 lines
2.7 KiB
Bash
#!/bin/bash
|
|
|
|
# Copyright (C) 2022-2024 Thien Tran
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
|
|
# use this file except in compliance with the License. You may obtain a copy of
|
|
# the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
# License for the specific language governing permissions and limitations under
|
|
# the License.
|
|
|
|
# Compliance
|
|
systemctl mask debug-shell.service
|
|
systemctl mask kdump.service
|
|
|
|
# Setting umask to 077
|
|
umask 077
|
|
sed -i 's/umask 022/umask 077/g' /etc/bashrc
|
|
echo 'umask 077' | tee -a /etc/bashrc
|
|
|
|
# Disable timesyncd
|
|
systemctl disable --now systemd-timesyncd
|
|
systemctl mask systemd-timesyncd
|
|
|
|
# Security kernel settings
|
|
curl --proxy http://127.0.0.1:8082 https://raw.githubusercontent.com/Kicksecure/security-misc/master/etc/modprobe.d/30_security-misc.conf | tee /etc/modprobe.d/30_security-misc.conf
|
|
chmod 644 /etc/modprobe.d/30_security-misc.conf
|
|
sed -i 's/#install msr/install msr/g' /etc/modprobe.d/30_security-misc.conf
|
|
curl --proxy http://127.0.0.1:8082 https://raw.githubusercontent.com/Kicksecure/security-misc/master/usr/lib/sysctl.d/990-security-misc.conf | tee /etc/sysctl.d/990-security-misc.conf
|
|
chmod 644 /etc/sysctl.d/990-security-misc.conf
|
|
sed -i 's/kernel.yama.ptrace_scope=2/kernel.yama.ptrace_scope=3/g' /etc/sysctl.d/990-security-misc.conf
|
|
curl --proxy http://127.0.0.1:8082 https://raw.githubusercontent.com/Kicksecure/security-misc/master/usr/lib/sysctl.d/30_silent-kernel-printk.conf | tee /etc/sysctl.d/30_silent-kernel-printk.conf
|
|
chmod 644 /etc/sysctl.d/30_silent-kernel-printk.conf
|
|
curl --proxy http://127.0.0.1:8082 https://raw.githubusercontent.com/Kicksecure/security-misc/master/usr/lib/sysctl.d/30_security-misc_kexec-disable.conf | tee /etc/sysctl.d/30_security-misc_kexec-disable.conf
|
|
chmod 644 /etc/sysctl.d/30_security-misc_kexec-disable.conf
|
|
# Dracut doesn't seem to work - need to investigate
|
|
# dracut -f
|
|
sysctl -p
|
|
|
|
# Harden SSH
|
|
curl --proxy http://127.0.0.1:8082 https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/ssh/ssh_config.d/10-custom.conf | tee /etc/ssh/ssh_config.d/10-custom.conf
|
|
chmod 644 /etc/ssh/ssh_config.d/10-custom.conf
|
|
|
|
# Setup hardened_malloc
|
|
dnf install 'https://divested.dev/rpm/fedora/divested-release-20231210-2.noarch.rpm' -y
|
|
sed -i 's/^metalink=.*/&?protocol=https/g' /etc/yum.repos.d/divested-release.repo
|
|
dnf config-manager --save --setopt=divested.includepkgs=divested-release,real-ucode,microcode_ctl,amd-ucode-firmware,hardened_malloc
|
|
dnf install hardened_malloc -y
|
|
echo 'libhardened_malloc.so' | sudo tee /etc/ld.so.preload |